Money we turn into nut (6)
I believe the answer is:
cashew
'nut' is the definition.
(I know that cashew is a type of edible nut)
'money we turn' is the wordplay.
'money' becomes 'cash' (cash is a type of money).
'turn' says the letters should be written in reverse.
'we' reversed gives 'ew'.
'cash'+'ew'='CASHEW'
'into' is the link.
(Other definitions for cashew that I've seen before include "Edible nut" , "Kidney shaped nut" , "nut-tree" , "Kind of nut" , "snack perhaps" .)